LEYLAND NATIONAL BUS

 

LENGTH 37' 3"  SEATING 49    WIDTH 8' 2"   HEIGHT 10' 8"

 

TURNING CIRCLE 71' 6"

 

 

DO'S AND DON'TS

 

1               AIR PRESSURE
Do not move off until all air gauges register a minimum of 110psi.

2               TEST BUTTON
Depress the warning light test button to ensure that the warning lights for, Low Air Pressure, Low Oil Pressure, Low Coolant Level and Emergency Exit Open are operational.

3               START SWITCH
With the start switch in the "Auxilliary" position check that the following lights are illuminated.

 

a)           Charge - This light should go out when the engine starts

b)           Handbrake - Illuminated when handbrake is "on".

c)           Low Oil Pressure - This light should go out when the engine starts.

d)           Low Air Pressure - This light should go out when the Air Pressure reaches 65psi and should be accompanied with a buzzer.

e)           Emergency Door - This light should be illuminated only when an Emergency Exit is open and should be accompanied with a buzzer.

 

4               WARNING LIGHS AND BUZZERS
Always take action if a warning light and/buzzer comes on.

 

a)           Low Air Pressure -
Registered by:- Warning Lights, Warning Buzzer and Gauges.

If during normal running the warning light and buzzer comes on pull into the road side, apply the hand brake, place the gear lever in "NEUTRAL" rev the engine and hold at a high speed.  The warning light and buzzer should go out after a short period of time and the gauges should register a pressure increase, if this occurs build the air pressure upto maximum ie 110psi and continue your journey.  If the buzzer and light come on again within a short period of time report the defect to the engineers immediately.  If the air pressure does not build up contact the engineers immediately.

b)           Low Oil Pressure:-
Registered by Warning Lights.

If at any time the Low Oil Pressure warning lights comes on, or if it fails to go out immediately the engine is started, STOP the engine and report the defect to the engineers.  THE ENGINE SHOULD BE STOPPED WITHIN 20 SECONDS OF THE WARNING LIGHT COMING "FULLY ON" TO PREVENT MAJOR DAMAGE.  If the warning light "Flickers" when the engine is "ticking over" this should be noted and reported as soon as possible.

c)           Low Cooland Level:-
Registered by Intermittent Warning Light and Buzzer.

If at any time the Low Coolant Level warning light and buzzer comes "ON" pull into the road side and stop the engine.  Go to the rear of the vehicle and check if water is leaking from the radiator or engine, if there are signs of water leakage report the defect to the engineers immediately. If there is no sign of a water leak very carefully and slowly remove the radiator cap.  If there is no water apparent in the header tank, check if any is available locally to "top up" the level. If water can be obtained fill up the header tank and check for further leaks, if none are apparent and the warnings have gone out proceed with your journey. If water is not available or where water leaks are found after the system has been "topped up" report the defects the engineers immediately.

d)           High Engine Temperature:-
Registered by Warning Light or Buzzer or Both.

If at any time the High Engine Temperature warnings are "ON" then the same procedure as for Low Coolant Level should be followed.  Additionally when the engine is "STOPPED" lift the rear engine panel and check that the fan and fan drive are Intact.  Any information you are able to give the engineers should help in diagnosing the problem and help to keep "down time" to a minimum.

 

NEVER CONTINUE TO OPERATE ANY VEHICLE WITH A WARNING SYSTEM IN OPERATION UNLESS YOUR ENGINEERING DEPARTMENT HAS GIVEN YOU PERMISSION TO DO SO, AND THEN OPERATE WITHIN THE LIMITS INSTRUCTED BY THEM.

 

Indication lights: Directional - green

                   Main beam   - Blue.

 

5               Always allow the vehicle to stop completely before engaging a gear for an opposite direction, i.e. forward to reverse, or vice versa.

6               Do not select a gear until the low air pressure warning buzzer has cut out. This applies in particular to vehicles with a semi-automatic gearbox to avoid the possibility of band slippage. It also applies to fully automtic vehicles since the parking brakes will not be fully released until this point is reached.

7               Do not drive the vehilce until the suspension is fully inflated. The suspension may settle overnight, but it will be quickly restored to normal height when the engine is running.

8               Do not abuse the easy steering by rapidly applying full lock when moving slowly, or when stationary. This practice will quickly 'scrub" tyres.


9               Do not attempt to turn the steering wheel when the engine is stationary as the steering is not then power assisted.

10           Do not 'rev' a cold engine. Do not hold on maximum revs immediately the engine starts. Drive off normally with moderate use of the accelerator.

 

11           Do not coast in neutral: the type of gearbox fitted may be damaged by the over speeding of gears.

12           The parking brake must not be applied (except in emergency) until the vehicle has stopped. Using it as a service brake will result in damage to the braking system.

13           If at any time it is necessary to add water to the radiator when the engine is hot, great care should be exercised in the removal of the filler cap.

 

 

Start/Stop Switch
Key operated switch has 4 positions -

 

OFF       Key in fore and aft position.

AUX       1st position clockwise. Vehicle electrical supply switched on.

START     2nd position clockwise. Starter motor energised.

STOP      1st position anti-clockwise. Engine stopped.

 

Stopping Engine
Ensure that the gear selector is returned to NEUTRAL position before stopping the engine.

 

Before stopping a turbo-charged engine allow it to idle for a few minutes. This allows the rotor to slow down whilst there is still oil pressure in the bearings, thus reducing the possibility of bearing failure.

 

Starting the Engine
To prevent damage to the starter pinion a lockout system ensure that, once the engine has started and the start key has been released, the starter cannot be re-engaged until the engine stops.

 

Therefore, to energise the starter, the following conditions must prevail:-

a)           All engine access doors fully closed.

b)           Gear selector in gate position "S" for semi-automatic, or postion "N" fully automatic.

 

Ensure that parking brake is applied.


If cold, starting devise has to be used:-

 

i)            First depress cold starting button for 15 seconds (not more than 25 seconds).

ii)     Keeping the cold start button depressed, operate the starter in short bursts for about 10 seconds - pausing 6 seconds between each burst, until the engine is running.

iii)  Release the cold start button and the starter switch immediately when the engine starts to run.

 

CAUTION


The cold start will be damaged if it is depressed for more than 25 seconds.

 

In order to avoid slipping and consequent excessive wear of brakes in the semi-automatic gearbox, it is imperative that gears are not selected before the low air pressure warning light and buzzer have ceased to operate.

 

To obtain optimum life from the gearbox and promote passenger comfort, the following procedure should be taken:-

 

Changing Up
Remove the foot from the accelerator; pause in neutral position and then select next gear. Repeat the procedure until top gear is selected.

 

Changing Down
Move the selector into the neutral position and then accelerate lightly to allow the engine speed to correspond with the road speed of the next lower gear before engaging.

 

Moving Off
It is important to use the correct gear to pull away (2nd). Do not use 3rd or 4th as this can cause considerable damage to the gearbox.